Filter.



G. W. WRIGHT. FILTER;

APPLICATION FILED NOV. 7, 1907.

` Patented Sept.29, 1908.

1HE Naxms zrsks co., wAsmNarqN. n. c.

PATENT onnion.

CHARLES W. WRIGrHT,` OF BALTIMORE, MARYLAND.

FILTER.

Specification of Letters Patent.

Patented Sept. 29, 1908.

` Application filed November 7, 1907. Serial N o. 401,188.

To all whom fit may concern:

Be it known that I, CHARLES W. WRIGHT, a citizen of the United States, residing in the city of Baltimore and State of Maryland,

have invented a new and useful Filter for f Filtering and Clarifying Water.

y invention relates to improvement in water filter, so that water may be filtered twice while passing through one column, and

consists: n

First,-of one hollow, sectional, column, closed at ends, containing grids and strainers so as to form two large and three small chambers. The two large chambers to contain any ltering material commonly used in filtering. A finer material always being used in the lower large chamber than the upper large chamber the small upper and middle chambers being receivers for sediment and foreign matter taken-from the water when in operation;

Second,-Connected pipes in which are two two-way control cocks, connected to a lever and so timed and controlled by the lever that by certain positions of the lever the filter may be at work, lower chamber washed out and cleansed of sediment, orthe upper chamber likewise cleansed, thereby having any of the three operations independent of the other two.

I attain these objects by the mechanism and combination illustrated in the accompanying drawing, in which igure 1 is a vertical section of the entire apparatus, Fig. 2 a top view, Fig. 3 a top view of grids.

Similar letters and figures refer to similar parts throughout the several views.

The chambers A and B are cylindrical hollow vessels, containing filtering material, the material being supported by grids 2 and 4; these grids being made -web form with gauze or perforated lsheet metal for the support of the filtering material. Grids 1 and 3 retain the filtering material when washing out.

Water entering through supply pipe G, cock f2, pipe h1, cock f pipe h grid 1 into chamber A through filtering material, and grid 2 into washing chamber C through grid 3, filtering in chamber B through` grid i and out through service pipe 7c to house, thus reto the column are three-way and one 'moving all sediment and clarifying the water.

Cocks f (three-way), f1 (two-way), and f 2 (three-way), are all controlled by handle E and rods L and L1. ien handle is in position shown by E1 the water is being ltered. When handle is in position shown by E2 cock remains closed, cock 1 is open and cockf2 is turned to position shown by lever c to e1, allowing water to flow through supply pipe g and g1 under filtering material in chamber B, thereby washing all sediment from and cleansing chamber B and filtering material therein, through retaining gauze 3, and out through washout chamber C, cock f1 and washout pipe y'.

When handle E is moved to position E3 cock f1 is closed, cock f2 remains in position shown by e1 and cockf is turned to position shown by lever e2, allowing the water to continue on up from chambers B and C through A and filtering materials therein, removing uall sediment from and cleansing chamber A and filtering material therein, through grid 1 and out through pipe h and cockf to washout. When muddy or foreign matter no longer appears at washout, handle is moved back to its original position E1 and apparatus is again filtering as at first.

at I claim as new is:

1. In a compound filter, of primary and secondary umn, a chamber the combination filters 1n one colsingle lever controlling all of said valves, whereby by the movement of said lever the water may pass through both filters to the supply pipe, or the water may be reversed and wash out the filters, substantially as described.

2. In a compound filter, the combination ofprimary and secondary filters in one column, a chamber between said filters, pipes leading to said filter and a supply pipe leading therefrom, a wash out pipe, a valve for the primary filter, a valve for the secondary lter and a valve for said chamber, and a [single lever controlling all of said valves, whereby by the movement of said lever the Water may pass through both filters to the supply pipe, and the water may be reversed passing through one filter to the intermediate chamber to the wash out or through both filters to the wash out, substantially as I described.

3. In a compound lter, the combination Q @9,645 of primary and secondary lil-ters', a chamber n between said lilters, pipes leading to said lilters, substantially as described. 'lilter a three-Way Valve fory each filter and a ,T ,T Y Y j, two-slay valve for the intermediate chamber, l (JHAS' X RHIN l 5 and a single lever controlling lsaid Valves itireSses: l

WherebT the Water may be filtered through LEWIS F. POWELL, both filters or the Water may be reversed CHAS. L, VVIEGAND.-

and Wash out one lter or wash out both 

